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0. 0. BAXTER. MACHINE FOR MAKING PICTURE FRAME MOLDINGS. No. 329,877.

Patented Nov. 10, 1885.

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UNTTED STATES PA ENT @rrrcn.

CHARLES O. BAXTER, OF ST. LOUIS, MISSOURI.

MACHINE FOR MAKING PICTURE-FRAME MOLDINGS.

SPECIFICATION forming part of Letters Patent No. 329,877, dated November10, 1835.

Application filed June 20, 1885. Serial No. 169,295. (No model.)

To all whom it may concern.-

Be it known that I, CHARLES O. BAXTER, of the city of St. Louis, in theState of Missouri, haveinvented a certain new and useful Improvement inMachines for Making Picture-Frame Moldings, of which the following is afull, clear, and exact description, reference being had to theaccompanying drawings, forming part of this specification.

This is a machine for impressing a design upon plastic material, whichis passed through the machine in strips or plates.

Figure 1 is an end elevation of the machine as used for the applicationof a molded facing to strips of wood'which form the sides of thepicture-frame or parts of the same. Parts are broken out in this figureto show other parts beneath. Fig. 2 is a side elevation of the machine.Fig. 3 is a longitudinal section at 3 3, Fig. 1. Fig. 4 is a verticallongitudinal sect-ion at 4 4, Fig. 3. Fig. 5is a detail transversesection at 5 5, Fig. 3. Fig. 6 is a sectional view of the lower roller,showing a modification in construction. Fig. 7 is a detail elevation ofthe two rollers as used in the manufacture of strips of embossedmaterial without the wooden backing-strips.

A is the frame of the machine. B is the drive-shaft, carrying a pulley,O, to receive a drive-belt. (Not shown.) D is a wheel or roller upon theshaft B, said roller being vertically beneath the embossing wheel orroller E. The shaft B carries a spur -wheel, G, which engages aspur-wheel, H, that engages 'an adjustable transmitting-wheel, I, thatin turn engages a spur-wheel, J, upon the shaft K of theembossing-roller. The arrangement is such that the surface-speed of thetwo rollers D E is equal, so that they both act as feedrollers to thestrip L passing between them. To increase the hold of the roller D uponthe strip, I roughen the circumferene of the roller.

The shaft K has bearing in boxes M, which work in vertical guide-slots Nof the frame, so as to enable the vertical adjustment of theembossing-roller E. The boxes M are supported on screws 0, tapped in thetop of frame A. The lower ends of the screws 0 turn in sockets 0 of theboxes, and are held therein by pins or keys 0, that occupycircumferential grooves of the screw ends. (See Fig. 1.) The upper endsof the screws 0 carry spur-wheels P, which engage a single spur-wheel,Q, that is turned by a hand-wheel, R, to cause the simultaneouselevation and depression of the two boxes M. The wheel Q has lengthsufficient to allow the required vertical movement of the wheels Pwithout disengagement.

S is the table upon which the material is fed to the embossing-roll, thetable being sup ported on brackets or lugs S, through which passset-screws which are tapped into abloek or bar, '1, upon each sidefitting in adovetail groove, U, of the frame. The construction is suchthat when the screws are made tight the blocks are fixed in the groovesU and the table held in place.

V V are guides whose inner sides are in line with the ends of theembossing-roller, and which lap past said ends some distance. Theseguides prevent to a great degree the side spreading of the material asit passes beneath the embossing-roller. The guides Vare madetransversely-adjustable upon the table R by means similar to thosedescribed for th tachrnent of the table to the frame A.

WV are brackets orlugs attached to the outer sides of the guides, and Xare screws passing through the brackets and tapped in blocks Y, fittingin a transverse dovetail-groove, Z, of the table. \Vhen the set-screws Xare made tight, the guides are held firmly in place.

The machine as described, with the rollers D and E, as shown, is usedfor putting an embossed face of plastic material, Z, upon a woodenstrip, L, said strip having a rabbct-groove at Z to receive the pictureand backing when the strips have been formed into a frame. It will beseen that the roller D carries a wheel or collar, d,which occupies thisrabbet-groove. This collar is arranged to turn freely on the roller, soas to avoid friction of the collar against the strip, for it will beseen that if the collar were made fast to the roller, its circumferencebeing greater, it would have greater surface-speed, but being loose itmoves with equal surface-speed, and being lubricated in its bearing uponthe roller D it turns freely thereon.

d are plates holding the collars d in place upon the roller, the platesbeing held by screws (1 a is an off-bearing belt upon the pulley b,

this pulley being upon a shaft, 0, which carries a spur -wheel, 6, whichengages with a spur-wheel, f, upon the shaft H of the spurwheel H. 5 Theshaft Kshouldbe made removable from the machine, and .theembossing-roller removable from the shaft, to allow the change ofrollers in changing the designs as to either configuration'or size. Forthis purpose the roller E and collars K may be secured to the shaft byset-screws c and 70. (See Figs. 5 and 1,'respectively.) After the rollerand collars have been made loose on the shaft, it may be drawn endwisefrom it bearings. In like manner the I 5 appendages of the shaft B maybe'made removable, so that the shaft may be drawn from its bearings andthe roller D changed. Ihave described the collar or wheel (1 as turningor having bearing in a groove ofthe roller D, but it may instead havedirect bearing upon the shaft B, as seen in Fig. 6, turning freely onsaid shaft as it is carried around by the strip L; or the wheel (1 maybe made fast upon the shaft B by means of the set-screw in its hub, andthe wheel D be left free to turn upon the shaft. Whichever of thesewheels is free to turn upon the shaft, should he kept in place by acollar, B.

It is proper that the wheel or roller (D or 50 d) which is fast uponshaft B shall have a surjustable embossing-roller, of a table, S, madevertically adj ustable,substantially as set forth.

4. The combination, with the two-wheels P upon the journal-box andlifting-screws O, of the elongated gear-wheel Q, for the purpose setforth.

5. The combination of embossing wheel or roller E, a table, S, andguides adjustable upon the table and lapping over the ends of theembossing-wheel, for the purpose set forth.

6. The guides V, having lugs, and screws X, turning in the lugs andscrewing in blocks Y, movingin atransverse dovetail slot in the top oftable S.

1 CHARLES O. BAXTER.

Witnesses:

SAML. KNIGHT, BENJN. A. KNIGHT.

